201819318364 has 24 divisors (see below), whose sum is σ = 367320847040. Its totient is φ = 96939550656.

The previous prime is 201819318299. The next prime is 201819318413. The reversal of 201819318364 is 463813918102.

201819318364 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8618967 + ... + 8642350.

Almost surely, 2^201819318364 is an apocalyptic number.

It is an amenable number.

201819318364 is a deficient number, since it is larger than the sum of its proper divisors (165501528676).

201819318364 is a wasteful number, since it uses less digits than its factorization.

201819318364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17261437 (or 17261435 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 46.

The spelling of 201819318364 in words is "two hundred one billion, eight hundred nineteen million, three hundred eighteen thousand, three hundred sixty-four".